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Weather & Climate in Cosham, United Kingdom
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Cosham experiences four distinct seasons with an average annual temperature of 52°F (11°C). Winters average 40°F in January while summers reach 61°F in July. The area gets 229 sunny days per year, above the national average. Annual precipitation totals 44.5 inches. The area receives 5.7 inches of snow annually. The city sits at an elevation of 46 feet.
Temperature
40°F Jan (5°C)
61°F Jul (16°C)
| Annual Average | 51.7°F |
| 4% below US avg | |
| January Average | 40°F (5°C) |
| July Average | 61°F (16°C) |
| Sunny Days | 229 days/yr |
Geography
| Elevation | 46 ft (14 m) |
| Area | 33.7 sq mi (87.2 km²) |
| Population Density | 304/sq mi |
| Coordinates | 50.8465°N, 1.0634°W |
| Timezone | Europe/London |
Precipitation & Snow
Air Quality
Earthquake History
28 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M4.6.
| Apr 28, 2007 | 1 km WNW of Lympne, United Kingdom | M4.6 | 148 km | 10 km |
| Oct 6, 1999 | 34 km NNW of Fécamp, France | M4.6 | 129 km | 1 km |
| Jul 14, 2011 | 62 km SSE of Ventnor, United Kingdom | M3.9 | 84 km | 10 km |
| Jan 29, 2004 | 2 km E of North Petherton, United Kingdom | M3.7 | 137 km | 7 km |
| May 12, 1994 | 4 km S of Shipston on Stour, United Kingdom | M3.7 | 136 km | 10 km |
| Jan 29, 2004 | 2 km E of North Petherton, United Kingdom | M3.6 | 137 km | 7 km |
| Sep 23, 2003 | 41 km WNW of Étretat, France | M3.6 | 122 km | 10 km |
| Sep 24, 2003 | 22 km WNW of Cauville-sur-Mer, France | M3.5 | 143 km | 17 km |
| Feb 27, 2019 | 3 km SE of Dorking, United Kingdom | M3.3 | 67 km | 10 km |
| Jan 29, 2004 | 2 km E of North Petherton, United Kingdom | M3.3 | 137 km | 7 km |
| Jun 16, 1998 | 18 km NNW of Yport, France | M3.3 | 139 km | 5 km |
| Sep 9, 1995 | 0 km WNW of East Wittering, United Kingdom | M3.3 | 15 km | 10 km |
| Aug 26, 2002 | 40 km NNW of Étretat, France | M3.0 | 116 km | 4 km |
| May 19, 2019 | 7 km ESE of Swanage, United Kingdom | M3.0 | 64 km | 10 km |
| Nov 26, 1991 | 50 km N of Urville-Nacqueville, France | M3.0 | 92 km | 10 km |
| Jan 27, 2015 | 1 km ENE of Winchester, United Kingdom | M2.9 | 30 km | 3 km |
| Jul 16, 2005 | 3 km WSW of Southwater, United Kingdom | M2.9 | 50 km | 5 km |
| Mar 18, 2001 | 8 km W of Marlborough, United Kingdom | M2.9 | 85 km | 10 km |
| Mar 23, 1998 | 11 km W of Chickerell, United Kingdom | M2.9 | 116 km | 5 km |
| Dec 31, 1992 | 38 km WNW of Étretat, France | M2.8 | 127 km | 10 km |
Source: USGS Earthquake Catalog (M2.5+, 1990-2025). Sorted by magnitude.
Tsunami History
1 tsunami recorded within 500 km. Highest wave on record: 0.4 m (1 ft).
| Year | Location | Cause | Max Wave | Deaths | Distance |
| 2011 | PLYMOUTH, ENGLAND | Avalanche | 0.4 m | - | 142 km |
Source: NOAA/NCEI Historical Tsunami Database.
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 40°F (5°C) | 3.7 in | Coldest, Wettest |
| February | 40°F (5°C) | 2.4 in | |
| March | 44°F (7°C) | 2.8 in | |
| April | 47°F (8°C) | 2.1 in | |
| May | 53°F (12°C) | 2.0 in | |
| June | 58°F (15°C) | 2.2 in | |
| July | 61°F (16°C) | 1.9 in | Driest |
| August | 62°F (17°C) | 2.2 in | Warmest |
| September | 58°F (14°C) | 3.0 in | |
| October | 52°F (11°C) | 3.5 in | |
| November | 45°F (7°C) | 3.7 in | |
| December | 42°F (6°C) | 3.7 in |
Cosham has a seasonal temperature swing of 22°F / from 40°F in January to 62°F in August. Total annual precipitation is 33.2 inches, with January being the wettest month (3.7") and July the driest (1.9").